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Commit f1aac484 authored by Mark Brown's avatar Mark Brown
Browse files

ASoC: Take a pm_runtime reference on DAPM devices that are enabled 



As for PCMs take a runtime power management reference to devices that are
in a non-off bias, avoiding the need to do this in individual drivers.

Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent beaff340

sound/soc/soc-dapm.c

+7 −0
Original line number Diff line number Diff line
@@ -39,6 +39,7 @@ 
#include <linux/platform_device.h>

#include <linux/jiffies.h>

#include <linux/debugfs.h>

#include <linux/pm_runtime.h>

#include <linux/slab.h>

#include <sound/core.h>

#include <sound/pcm.h>
@@ -1206,6 +1207,9 @@ static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) 
	/* If we're off and we're not supposed to be go into STANDBY */

	if (d->bias_level == SND_SOC_BIAS_OFF &&

	    d->target_bias_level != SND_SOC_BIAS_OFF) {

		if (d->dev)

			pm_runtime_get_sync(d->dev);



		ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY);

		if (ret != 0)

			dev_err(d->dev,
@@ -1245,6 +1249,9 @@ static void dapm_post_sequence_async(void *data, async_cookie_t cookie) 
		ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF);

		if (ret != 0)

			dev_err(d->dev, "Failed to turn off bias: %d\n", ret);



		if (d->dev)

			pm_runtime_put_sync(d->dev);

	}



	/* If we just powered up then move to active bias */